Gas Releasing Cap for Aerosol Container

ABSTRACT

A gas releasing cap  750  comprises a cap body  501  composed of a top plate part  511  and a side wall  512  installed downwardly at the rim of the top plate part  511 , where an opening is formed, and a pushing member  502  having a pushing projection  521  swingably connected to the top plate part  511  of the cap body  501 , wherein the cap  750  is capable of releasing gas by swinging the pushing member downwardly so as to lock the pushing member  502  into the top plate part  511  and pushing the stem  35  with a pushing projection  502  when releasing gas.

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a gas releasing cap for an aerosolcontainer, more specifically to a gas releasing cap which is capable ofeasily discharging the content by being simply attached to an aerosolcontainer filled with the content, such as cosmetics, paints,insecticide, and propane gas or the like.

BACKGROUND OF THE INVENTION

Conventionally, a cap described in Patent document 1 is known as a gasreleasing cap for releasing the content by being attached to an aerosolcontainer. The cap releases gas by bending a folding plate provided to atop plate part of the cap inwardly and attaching the cap to the aerosolcontainer in this state and pushing down a push bottom at a pushing partof the folding plate at the time of gas releasing. At the time ofgeneral use without gas releasing (hereinafter merely referred to as “atthe time of general use” in this specification), the cap is used as acover cap to surround the push bottom.

However, the conventional gas releasing cap had such drawbacks thatsupporting means (a fixing plate) to support the folding plate bendinginwardly has to be provided separately, resulting in an increase inproduction costs due to increased number of components. Further, thepushing part of the folding plate and the supporting means largelyproject inside the cap at the time of general use, so that there was anadvantage of fairly restricting the possibility of a cap design due tothe necessity of avoiding interference with the push button of theaerosol container and the like.

Patent Document 1: Japanese Patent Publication No. 2003-54665A

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention

In view of the above-mentioned drawbacks of the conventional gasreleasing cap, it is an object of the present invention to provide a gasreleasing cap having a very simple configuration without the need forseparately providing special supporting means for supporting a pushingmember to push a push button and a stem of an aerosol container or thelike in the cap.

Further, in other technical problems of the present invention, it is anobject of the present invention to provide a gas releasing cap withoutlarge projection of a pushing member in the cap and fears ofinterference with a push button and a stem of an aerosol container orthe like.

Means for Solving the Problems

A gas releasing cap for attaching to an aerosol container for sprayingthe content through a stem by pushing the stem according to the presentinvention comprises: a cap body composed of a top plate part and a sidewall installed downwardly at the rim of the top plate part, in which anopening is formed in the top plate part; and a pushing member having apushing projection swingably connected to the top plate part of the capbody, wherein the cap is capable of releasing gas by swinging thepushing member within the cap so as to lock the pushing member into thetop plate part and attaching the cap body to the aerosol container so asto push the stem with a pushing projection.

Further, the gas releasing cap for attaching to an aerosol container forspraying the content through a stem by pushing the stem according to thepresent invention comprises: a top plate part; a first side wallinstalled downwardly at the rim of the top plate part having an engagingprojection engageable with a winding up part of the aerosol container ata lower end; and a second side wall installed upwardly at the rim of thetop plate part having an engaging projection engageable with the windingup part at an upper end, wherein the distance from the top plate part tothe upper end of the second side wall is set to be smaller than thedistance from the top plate part to the lower end of the first side walland the stem is pushed with the top plate part so as to release gas byengaging the second side wall with the winding up part of the aerosolcontainer.

Furthermore, the gas releasing cap for attaching to an aerosol containerfor spraying the content through a stem by pushing the stem according tothe present invention comprises: a top plate part; and a side wallinstalled downwardly at the rim of the top plate part, wherein the stemis pushed with the top plate part by forcibly inserting the side wallinto the aerosol container.

Moreover, the gas releasing cap for attaching to an aerosol containerfor spraying the content through a stem by pushing the stem according tothe present invention comprises: a top plate part; a first side wallinstalled downwardly at the rim of the top plate part having an engagingprojection engageable with one winding up part of the aerosol containerat a lower end; and a second side wall installed upwardly at the rim ofthe top plate part having an engaging projection engageable with anotherwinding up part at an upper end, wherein the distance from the top platepart to the upper end of the second side wall is set to be smaller thanthe distance from the top plate part to the lower end of the first sidewall and the stem is pushed with the top plate part so as to release gasby engaging the second side wall with the winding up part of the aerosolcontainer.

In addition, the gas releasing cap for attaching to an aerosol containerfor spraying the content through a stem by pushing the stem according tothe present invention comprises: a push button attachably/detachablyattached to the stem having a spray nozzle; a top plate part providedabove the push button; and a side wall provided above the top plate parthaving an engaging projection engageable with a winding up part of theaerosol container at an upper end, wherein the stem is pushed with thetop plate part so as to release gas by removing the push button from thestem and engaging the side wall with the winding up part of the aerosolcontainer.

ADVANTAGES OF THE INVENTION

According to the present invention, a gas releasing cap having a verysimple configuration and inexpensive can be provided because there is noneed for separately providing a special supporting means to support apushing member for pushing a push button and a stem of an aerosolcontainer or the like.

In addition, since the pushing member has no possibility of largelyprotruding, unlike conventional caps, there is no need for consideringinterference with the push button or the like, resulting in securing ofa design freedom.

BEST MODE FOR CARRYING OUT THE INVENTION

A gas releasing cap for an aerosol container according to the presentinvention will now be described in detail on the basis of theaccompanying FIGS. 1 to 2 (b).

A gas releasing cap 750 of an t in the present invention comprises: acap body 501; and a pushing member 502 swingably connected to the topplate part 511 of the cap body 501.

The cap body 501 comprises: the circular top plate part 511; and acylindrical side wall 512 installed downwardly around the periphery ofthe top plate part 511. A medium part of the top plate part 511 isrecessed in the shape of a rectangular solid and a round opening 513 isprovided at the bottom of a recess 514 of the top plate part 511 in anopen condition. Further, an engaging projection 517 is provided to theinner surface of a lower end of the side wall 512 in all circumferences.The engaging projection 517 is attachably/detachably engaged withrespective outside recessed parts of a winding up part 33 of an aerosolcontainer 3 to attachably/detachably attach the gas releasing cap 750 tothe aerosol container 3 so as to surround a stem 35 and a push bottom37. The winding up part 33 connects a container body 31 of the aerosolcontainer 3 to a top dome 32 in the status of airtight. Moreover, athrough-hole 515 is provided in the medium part of the side wall 512.

On the other hand, a pushing member 502 comprises: a head 520 in theshape of a square plate; and a cylindrical pushing projection 521. Asshown in FIG. 1, not only one end of the head 520 is swingably connectedto the recess 514 of the above-mentioned top plate part 511 via a thinpart 522 but also another end of the head 520 is separably connected toa breaking portion 523. The breaking portion 523 prevents the pushingmember 502 from involuntarily swinging in the recess 514 at the time ofgeneral use. Additionally, a locking projection 516 is provided to theopposite side of the above-mentioned thin part 522 on the inner wallsurface of the recess 514 to lock another end of the head 520 of thepushing mer 502.

As shown in FIG. 1, the gas releasing cap 750 is located in the recess514 in the situation in which the pushing projection 521 is raisedupward at the time of general use. In this situation, the gas releasingcap 750 is attached to or removed from the aerosol container 3appropriately to be used in general use.

As shown in FIG. 2 (a), when releasing gas, the pushing mer 502 isallowed to swing toward the inside of the cap by breaking the breakingportion 523 with the gas releasing cap 750 attached to the aerosolcontainer 3 to abut the head 520 with the bottom of the recess 514 andin addition, another end of the head 520 is allowed to lock the lockingprojection 516. By doing this, the pushing projection 521 protrudes tothe inside of the cap through the opening 513 and the push button 37 andthe stem 35 of the aerosol container 3 are maintained in the pushedstate, so that the content of the aerosol container 3 is discharged intothe cap body 501 through the push button 37 and the stem 35 and thendischarged outside the through-hole 515.

Thus, according to the gas releasing cap 750, gas releasing work can beeasily carried out simply by swinging the pushing member 502 toward theinside of the cap with the cap body 501 attached to the aerosolcontainer 3. In general use, there is no possibility of the pushingmember 502 protruding toward the inside the cap and unlike conventionalcaps, there is no need for considering interference with the push button37 of the aerosol container 3 or the like.

While typical embodiments of the gas releasing cap according to thepresent invention have been described so far, the gas releasing capaccording to the present invention can be embodied in other forms.

For example, the gas releasing cap may be configured like a gasreleasing cap 770 shown in FIGS. 3 and 4. The gas releasing cap 770comprises: a top plate part 711; a first side wall 712 installeddownwardly at the rim of the top plate part 711 having an engagingprojection 713 engageable with a winding up part of the aerosolcontainer at a lower end; and a second side wall 714 installed upwardlyat the rim of the top plate part 711 having engaging projections 715engageable with the winding up part at lower ends. The distance from thetop plate part 711 to the upper end of the second side wall 714 is setto be smaller than the distance from the top plate part 711 to the lowerend of the first side wall 712. And the gas releasing cap 770 releasesgas by pushing the stem with the top plate part, engaging the secondside wall 714 with the winding up part of the aerosol container.

More specifically, as shown in FIG. 3, in the gas releasing cap 770, thecylindrical first side wall 712 and the cylindrical second side wall 714having the same shaft center as that of the first side wall 712 areconcentrically connected to each other up and down and the top platepart 711 is provided in the medium place of the inner cylinder in asloped condition. The distance S from the central part of the top platepart 711 to the upper end of the second side wall 714 is set in such amanner that the distance S is smaller than that of the distance T fromthe top plate part 711 to the lower end of the first side wall 712. Andthe engaging projection 713 is provided to the outer surface of thelower end of the first side wall 712 in all circumferences and theengaging projections 715 is provided to the outer surface of the upperend of the second side wall 714 in all circumferences. In addition, athrough-hole 716 is provided in the medium place of the second side wall714.

As shown in FIG. 3, the gas releasing cap 770 is attachably/detachablyattached to the aerosol container 3 at the time of general use so as tosurround the stem 35 by attachably/detachably engaging the engagingprojection 713 of the first side wall 712 with the inside recessed partof the winding up part 36 of the aerosol container 3. The winding uppart 36 connects a valve unit 34 having the stem 35 to the top dome 32in the state of airtight. For example, like an aerosol container for aportable stove, the gas releasing cap 770 is usable appropriately for anaerosol container without attaching a push button to the stem 35.

When gas is released, as shown in FIG. 4, the gas releasing cap 770 isreversed after being removed from the aerosol container 3 to fit theengaging projections 715 of the second side wall 714 into the insiderecessed part of the winding up part 36 of the aerosol container 3. Bydoing this, the stem 35 of the aerosol container 3 is pushed with thetop plate part 711 to discharge the content of the aerosol container 3into the gas releasing cap 770 through the stem 35 and then the contentis discharged outside through the through-hole 716.

Thus the gas releasing cap 770 is easily capable of releasing gas bysimply reversing the cap itself to be attached to the same winding uppart 36 of the aerosol container 3. Since its structure is very simple,very low-priced gas releasing caps can be placed on the market. Further,the engaging projection provided to the outer side end of the side wallenables to easily attach and remove the cap. Furthermore, there is nopossibility of the top plate part 711 blocking spray holes of the stem35 when pushing the stem 35 because the top plate part 711 is providedin a sloped state.

Alternatively, in the gas releasing cap 770, while the first side wall712 and the second side wall 714 are provided directly at the peripheryof the top plate part 711, the present invention is not limited to this.Alternatively, like a gas releasing cap 775 shown in FIGS. 5 (a) to 8,an inner wall 757 may be provided directly at the periphery of a topplate part 751 and a second side wall 754 and a first side wall 752 viathe inner wall 757.

More specifically, as shown in FIG. 6, the substantially cylindricalinner wall 757 is arranged in a standing condition from the periphery ofthe sloped top plate part 751 in the shape of a substantially circularplate to the upward portion and an upper wall 758 is providedhorizontally outward from an upper end of the inner wall 757. Thesubstantially cylindrical-shaped second side wall 754 is provideddownwardly from the margin of the upper wall 758 and then the first sidewall 752 is provided downwardly from the second side wall 754. Thesecond side wall 754 and the first side wall 752 are formed together ina vertical succession.

As shown in FIG. 7, in the gas releasing cap 775, the distance S1 fromthe central part of the top plate part 751 to the upper end of thesecond side wall 754 is set to be smaller than the distance T1 from thecentral part of the top plate part 751 to the lower end of the firstside wall 752, so that an engaging projection 753 is provided to theouter surface of the lower end of the first side wall 752 in allcircumferences and an engaging projection 755 is provided to the outersurface of the upper end of the second side wall 754. And as shown inFIGS. 5 (a), 5 (b) and 7, a through-groove 756 is formed in the upperportion of the gas releasing cap 775 over the inner wall 757, the upperwall 758, and the second side wall 754.

As shown in FIG. 7, the gas releasing cap 775 is attachably/detachablyattached to the aerosol container 3 at the time of general use so as tosurround the stem 35 by attachably/detachably engaging the engagingprojection 753 of the first side wall 752 with the inside recessed partof the winding up part 36 of the aerosol container 3.

When releasing gas, as shown in FIG. 8, the gas releasing cap 775 isallowed to reverse after being removed from the aerosol container 3 tofit the engaging projection 755 of the second side wall 754 into theinside recessed part of the winding up part 36 of the aerosol container3. By doing this, the stem 35 of the aerosol container 3 is pushed withthe top plate part 751 to discharge the content of the aerosol container3 outside through the stem 35 and the through-groove 756.

Thus, as in the case of the afore-mentioned gas releasing cap 770, inthe gas releasing cap 775, gas releasing can be easily carried out bysimply reversing the cap itself to be attached to the same winding uppart 36 of the aerosol container 3. Further, extremely inexpensive gasreleasing caps can be placed on the market because of its simplestructure. Additionally, the engaging projections provided to the outerside end of the side wall enables to easily attach and remove the cap.

Furthermore, the content can be discharged sideward of the cap throughthe through-groove 756 provided in the second side wall 754, so thatthere is no fear of the content to be adhered to fingers or tops offingers of the operator when engaging the gas releasing cap 775 with theaerosol container 3. The through-groove 756 or the through-hole 716 ofthe above-mentioned gas releasing cap 770 is preferably formed large soas to facilitate the side discharging part of the content to be visible.In addition, there is no possibility of the top plate part 751 blockingspray holes of the stem 35 when pushing the top plate part 751 with thestem 35.

Alternatively, the gas releasing cap may be configured like the gasreleasing cap 776 shown in FIGS. 9 (a) and 9 (b). As shown in FIG. 10, asubstantially cylindrical inner wall 767 is arranged in a standingmanner upwardly from the periphery of a sloped top plate part 761 in theshape of a substantially circular plate and an upper wall 768 ishorizontally provided outwardly from the upper end of the inner wall767. A substantially cylindrical second side wall 764 is provideddownwardly from the margin of the upper wall 768, and in addition, thesubstantially cylindrical first side wall 762 is provided downwardlyfrom the second side wall 764. The second side wall 764 and the firstside wall 762 are formed together in a vertical succession.

As shown in FIG. 11, in the gas releasing cap 776, as in the case of theabove-mentioned gas releasing cap 770, space S2 from the central part ofthe top plate part 761 to the upper end of the second side wall 764 isset to be smaller than space T2 from the central part of the top platepart 761 to the lower end of the first side wall 762, so that anengaging projection 763 is provided to the outer surface of the lowerend of the first side wall 762 in all circumferences and then anengaging projection 765 is provided to the outer surface of the upperend of the second side wall 764 in all circumferences. And as shown inFIG. 9 (a), 9 (b) and FIG. 11, a through-groove 766 is formed in theupper portion of the second side wall 764 in the outer side of the upperportion of the gas releasing cap 776.

As shown in FIG. 11, the gas releasing cap 776 is attachably/detachablyattached to the aerosol container 3 at the time of general use so as tosurround the stem 35 by attachably/detachably engaging the engagingprojection 763 with the inside recessed part of the winding up part 36of the aerosol container 3.

As shown in FIG. 12, when releasing gas, the gas releasing cap 776 isallowed to reverse after being removed from the aerosol container 3 tofit the engaging projection 765 of the second side wall 764 into theinside recessed part of the winding up part 36 of the aerosol container3. By doing this, the stem 35 of the aerosol container 3 is pushed withthe top plate part 761 to discharge the content of the aerosol container3 outside through the stem 35 and the through-groove 766.

Thus, as in the case of the above-mentioned gas releasing cap 770, thegas releasing cap 776 can easily release gas by simply reversing the capitself to be attached to the same winding up part 36 of the aerosolcontainer 3. Since its structure is extremely simple, very low-pricedgas releasing caps can be placed on the market. Further, the engagingprojections provided to the outer side end of the side wall enables toeasily attach and remove the cap.

Further, the content can be discharged sideward of the cap through thethrough-groove 766 provided in the second side wall 764, so that thereis no fear of the content to be adhered to fingers or tops of fingers ofthe operator when engaging the gas releasing cap 776 with the aerosolcontainer 3. Furthermore, there is no possibility of the top plate part761 blocking the spray holes of the stem 35 when pushing the stem 35with the top plate part 761 because the top plate part 761 is sloped.

Alternatively, the gas releasing cap of the present invention may beconfigured like a gas releasing cap 780 shown in FIG. 13. The gasreleasing cap 780 comprises a top plate part 811 and a side wall 812installed downwardly at the rim of the afore-mentioned top plate part811. The releasing cap may release gas by forcibly inserting the sidewall 812 into the aerosol container to push the stem with the top platepart.

More specifically, as shown in FIG. 13, the gas releasing cap 780comprises the hemispheric shell-shaped top plate part 811 and thecylindrical side wall 812 installed downwardly around the periphery ofthe top plate part 811, wherein a through-hole 813 is provided. Theinside diameter of the side wall 812 is set to be a little smaller thanthe outside diameter of a projection 30 of a valve unit 34 to supportthe stem 35.

When releasing gas, the side wall 812 is forcibly inserted into theoutside of the projection 30 in the aerosol container 812 to be securedwhile keeping the pushing of the stem 35 at the inner side of the topplate part 811 with the stem 35 covered by the gas releasing cap 780.This enables to keep the stem 35 in the pushed state to discharge thecontent of the aerosol container 3 into the gas releasing cap 780through the stem 35, resulting in further discharge outwardly throughthe through-hole 813.

Thus the gas releasing cap 780 can easily and surely release gas simplyby forcibly inserting the cap into the aerosol container 3. Since itsstructure is extremely simple, very low-priced gas releasing caps can beplaced on the market. While an example for forcibly inserting the gasreleasing cap 780 into the outside the projection 30 in the valve unit34 has been described, the present invention is not limited to this. Forexample, the gas releasing cap may be forcibly inserted into the innerside or the outer side of the winding up part 36 of the aerosolcontainer 3 to be secured. Alternatively, the gas releasing cap may beforcibly inserted into the inner side or the outer side of the windingup part 33 of the aerosol container 3 to be secured.

Moreover, as shown in FIGS. 14 to 16, the gas releasing cap may beconfigured like a gas releasing cap 850. The gas releasing cap 850comprises: a top plate part 851; a first side wall 852 provided underthe top plate part 851 having engaging projections 853 engageable withone winding up part of an aerosol container at lower ends; and a secondside wall 854 provided above the top plate part 851 having engagingprojections 855 engageable with another winding up part of the aerosolcontainer at upper ends. The distance from the top plate part 851 to theupper end of the second side wall 854 is set to be smaller than thedistance from the top plate part 851 to the lower end of the first sidewall 852, so that gas can be released by pushing the push button and thestem, engaging the second side wall 854 with the winding up part of theaerosol container.

More specifically, as shown in FIGS. 14 and 15, the substantiallycylindrical second side wall 854 is installed in a standing conditionupwardly from the periphery of the circular-shaped horizontal top platepart 851 and an upper wall 857 is horizontally provided outwardly fromthe upper end of the second side wall 854. And a substantiallycylindrical outer wall 858 is provided downwardly from the margin of theupper wall 857 and further, the substantially cylindrical first sidewall 852 is provided downwardly from the outer wall 858. The outer wall858 and the first side wall 852 are formed together in a verticalsuccession.

The distance S3 from the central part of the top plate part 851 to theupper end of the second side wall 854 is set to be smaller than thedistance T3 from the central part of the top plate part 851 to the lowerend of the first side wall 852. And a plurality of engaging projections853 are provided to the inner surface of the lower end of the first sidewall 852 and a plurality of engaging projections 855 are provided to theinner surface of the upper part of the second side wall 854. As shown inFIGS. 14 and 15, a through-groove 856 is formed in the upper part of thegas releasing cap 850 over the second side wall 854, the upper wall 857,and the outer wall 858.

As shown in FIG. 15, the gas releasing cap 850 is attachably/detachablyattached to the aerosol container 3 at the time of general use so as tosurround the stem 35 and the push button 37 by attachably/detachablyengaging the engaging projections 853 with the outside recessed part ofthe outer winding up part 33 of the aerosol container 3.

As shown in FIG. 16, when releasing gas, the gas releasing cap 850 isallowed to reverse after being removed from the aerosol container 3 tofit the engaging projections 855 of the second side wall 854 into theoutside recessed part of the inner winding up part 36 of the aerosolcontainer 3. By doing this, the push button 37 and the stern 35 of theaerosol container 3 are pushed with the top plate part 851 to releasethe content of the aerosol container 3 outside through the stem 35, thepush button 37, and the through-groove 856.

Thus, as in the case of the gas releasing cap 850, the gas releasing cap850 can easily release gas by simply reversing the cap itself to beattached to the winding up part 36 of the aerosol container 3. Since itsstructure is extremely simple, very low-priced gas releasing caps can beplaced on the market. Further, the content can be discharged sideward ofthe cap through the through-groove 856 provided to the second side wall854, so that there is no fear of the content to be adhered to fingers ortops of fingers of the operator when engaging the gas releasing cap 850with the aerosol container 3. The size of the through-groove 856 ispreferably largely formed so as to facilitate the side discharging partof the content to be visible.

Alternatively, the gas releasing cap of the present invention may beconfigured like a gas releasing cap 860 shown in FIGS. 17 to 19. The gasreleasing cap 860 comprises: a top plate part 861; a first side wall 862provided under the top plate part 861 having engaging projections 863engageable with one winding up part of an aerosol container at lowerends; and a second side wall 864 provided above the top plate part 861having engaging projections 865 engageable with another winding up partof the aerosol container at upper ends. The distance from the top platepart 861 to the upper end of the second side wall 864 is set to besmaller than the distance from the top plate part 861 to the lower endof the first side wall 862, so that gas can be released by pushing thestem, engaging the second side wall 864 with the winding up part of theaerosol container.

More specifically, as shown in FIGS. 17 and 18, in the gas releasing cap860, the substantially cylindrical inner side wall 867 is installed in astanding condition upwardly from the periphery of the sloped top platepart 861 in the shape of a substantially circular plate and a firstupper wall 868 is horizontally provided outwardly from the upper end ofthe inner wall 867. And a substantially cylindrical second side wall 864is provided downwardly from the margin of the first upper wall 868.Further, a second upper wall 869 is horizontally provided downwardlyfrom the lower end of the second side wall 864 and a substantiallycylindrical medium wall 870 is provided upwardly from the margin of thesecond side wall 869, a third upper wall 871 is horizontally provideddownwardly from the margin of the medium wall 870, and a substantiallycylindrical outer wall 872 is provided downwardly from the margin of thethird upper wall 871. Then, a substantially cylindrical first side wall862 is provided downwardly from the outer wall 872. The outer wall 872and the first side wall 862 are formed together in a verticalsuccession. Thus an annular groove 873 capable of receiving the innerwinding up part 36 inside the aerosol container 3 is formed in the upperportion of the gas releasing cap 860 by the second side wall 864, thesecond upper wall 869, and the medium wall 870.

The distance S4 in an up and down direction from the central part of thetop plate part 861 to the upper end of the second side wall 864 is setto be smaller than the distance T4 from the central part of the topplate part 861 to the lower end of the first side wall 862. And aplurality of engaging projections 863 are provided to the inner surfaceof the lower end of the first side wall 862 and a plurality of engagingprojections 865 are provided to the outer surface of the upper end ofthe second side wall 864. As shown in FIGS. 17 and 18, a through-groove866 is formed in the upper part of the gas releasing cap 860 over theupper wall 867, the first upper wall 868, the second side wall 864, thesecond upper wall 869, the medium wall 870, the third upper wall 871,and the outer wall 872 so as to cut the annular groove 873.

As shown in FIG. 18, the gas releasing cap 860 is attachably/detachablyattached to the aerosol container 3 at the time of general use so as tosurround the stem 35 and the push button 37 by attachably/detachablyengaging the engaging projections 863 with the outside recessed part ofthe outer winding up part 33 of the aerosol container 3.

As shown in FIG. 19, when releasing gas, the gas releasing cap 860 isallowed to reverse after being removed from the aerosol container 3 tofit the engaging projections 865 of the second side wall 864 into theinside recessed part of the inner winding up part 36 of the aerosolcontainer 3. By doing this, the stem 35 of the aerosol container 3 ispushed with the top plate part 861 to release the content of the aerosolcontainer 3 outside through the stem 35 and the through-groove 866.

Thus, as in the case of the above-mentioned gas releasing cap 860, thegas releasing cap 860 can easily release gas by simply reversing the capitself and being attached to the winding up part 36 of the aerosolcontainer 3. Since its structure is extremely simple, very low-pricedgas releasing caps can be placed on the market. Further, the content canbe discharged sideward of the cap through the through-groove 866, sothat there is no fear of the content to be adhered to fingers or tops offingers of the operator when engaging the gas releasing cap 860 with theaerosol container 3. The size of the through-groove 866 is preferablylargely formed so as to facilitate the side discharging part of thecontent to be visible. In addition, there is no possibility of the topplate part 861 blocking the spray holes of the stem 35 when pushing thestem 35 with the top plate part 861 because the top plate part 861 isinclined.

Alternatively, the gas releasing cap of the present invention may beconfigured like a gas releasing cap 900 shown in FIGS. 20 to 22. The gasreleasing cap 900 comprises: a push button part 950; a top plate part960 provided above the push button part 950; and a side wall 970provided above the top plate part 960.

As shown in FIG. 21, the push button part 950 comprises: an insertinghole 951 to which the stern 35 of the aerosol container 3 can beinserted; a spray nozzle 952 for spraying the content of the aerosolcontainer 3; and a path 953 to connect the spray nozzle 952 and theinserting hole 951. The content is sprayed from the spray nozzle 952through the stem 35, the inserting hole 951, and the path 953 by pushingdown the push button 950 to push the stem 35 toward the aerosolcontainer 3 side.

The top plate part 960 in the shape of a substantially circular plateand the upper portion of the above-mentioned push button 950 are formedtogether in a sloped condition. A receiving recessed part 961 capable ofreceiving the stem 35 is formed in the center of the upper surface ofthe top plate part 960 and a bottom 962 of the receiving recessed part961 is sloped at the same angle as the upper sloped surface of the topplate part 960.

The side wall 970 is installed in a standing condition upwardly from themargin of the above-mentioned top plate part 960 and is substantiallycylindrical-shaped. A plurality of engaging projections 971 are providedto the inner surface of the upper end of the side wall 970. As shown inFIGS. 20 and 21, a through-groove 972 is formed in the lower portion ofthe sloped surface of the top plate part 960 so as to cut a part of theside wall 970.

As shown in FIG. 21, the gas releasing cap 900 is attached to the stem35 of the aerosol container 3 in the push button part 950 at the time ofgeneral use. And the content is sprayed from the spray nozzle 952 bypushing down the entire gas releasing cap 900 with a finger or the likelaid on the sloped surface of the top plate part 960 through thethrough-groove 972 of the side wall 970. There is no possibility of thesprayed content being adhered to the finger because the side wall 970can surround the finger laid on the sloped surface of the top plate part960 when spraying.

As shown in FIG. 22, when releasing gas, the gas releasing cap 900 isallowed to reverse after being removed from the aerosol container 3 tofit the engaging projections 971 of the side wall 970 into the outsiderecessed part of the inner winding up part 36 of the aerosol container3. By doing this, the stem 35 of the aerosol container 3 is pushed withthe bottom surface 962 of the receiving recessed part 961 of the topplate part 960 to release the content of the aerosol container 3 outsidethrough the stem 35, the receiving recessed part 961, and thethrough-groove 972.

Thus the gas releasing cap 900 can easily release gas by simplyreversing the cap and being attached to the winding up part 36 of theaerosol container 3. Since the aerosol container 3 can be disposed oftogether with the push button part 950 because the push button part 950and the gas releasing cap 900 are formed together. Moreover, the contentcan be discharged sideward of the cap through the through-groove 972provided in the side wall 970, so that there is no fear of the contentto be adhered to fingers or tops of fingers of the operator whenengaging the reserved gas releasing cap 900 with the aerosol container3. The size of the through-groove 972 is preferably largely formed so asto facilitate the side discharging part of the content to be visible. Inaddition, in general use of the gas releasing cap 900, it would becameeasier to lay fingers at the sloped surface by forming thethrough-groove 972 in a large way, resulting in improvement inusability. Since there is no possibility of the bottom surface 962blocking the spray holes of the stem 35 when pushing the stem 35 withthe bottom surface 962 because the bottom surface 962 of the receivingrecessed part 961 in the top plate part 960 is sloped toward thethrough-groove 972.

It is to be understood that the present invention may be practiced inother embodiments in which various improvements, modifications, andvariations are added on the basis of knowledge of those skilled in theart without departing from the spirit of the invention. Further, any ofthe specific inventive aspects of the present invention may be replacedwith other technical equivalents for embodiment of the presentinvention, as long as the effects and advantages intended by theinvention can be insured. Alternatively, the integrally configuredinventive aspects of the present invention may comprise a plurality ofmembers and the inventive aspects that comprise a plurality of membersmay be practiced in a integrally configured manner.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a gas releasing cap at the time ofgeneral use according to the present invention.

FIGS. 2 (a) and 2 (b) respectively illustrate the gas releasing cap.FIG. 2 (a) is a cross-sectional view when releasing gas and FIG. 2 (b)is a plan view when releasing gas.

FIG. 3 is a cross-sectional view of a variation of the gas releasing capaccording to the present invention at the time of general use.

FIG. 4 is a cross-sectional view of the gas releasing cap when releasinggas.

FIGS. 5 (a) and 5 (b) respectively illustrate another variation of thegas releasing cap according to the present invention. FIG. 5 (a) is aplan view and FIG. 5 (b) is a front view.

FIG. 6 is a cross-sectional view taken on line A-A of FIG. 5 (a) in thegas releasing cap.

FIG. 7 is a cross-sectional view taken on line B-B of FIG. 5 (a) in thegas releasing cap.

FIG. 8 is a cross-sectional view of the gas releasing cap when releasinggas.

FIGS. 9 (a) and 9 (b) respectively illustrate still another variation ofthe gas releasing cap according to the present invention. FIG. 9 (a) isa plan view and FIG. 9 (b) is a front view.

FIG. 10 is a cross-sectional view taken on line A-A of FIG. 9 (a) in thegas releasing cap.

FIG. 11 is a cross-sectional view taken on line B-B of FIG. 9 (a) in thegas releasing cap.

FIG. 12 is a cross-sectional view of the gas releasing cap whenreleasing gas.

FIG. 13 is a cross-sectional view of a further variation of the gasreleasing cap when releasing gas according to the present invention.

FIG. 14 is a plan view of a still further variation of the gas releasingcap according to the present invention.

FIG. 15 is a cross-sectional view taken on line A-A of FIG. 14 in thegas releasing cap and is an illustration view at the time of generaluse.

FIG. 16 is a cross-sectional view of the gas releasing cap whenreleasing gas.

FIG. 17 is a plan view of another variation of the gas releasing capaccording to the present invention.

FIG. 18 is a cross-sectional view taken on line A-A of FIG. 17 in thegas releasing cap and an illustration view at the time of general use.

FIG. 19 is a cross-sectional view of the gas releasing cap whenreleasing gas.

FIG. 20 is still another variation of the gas releasing cap according tothe present invention.

FIG. 21 is a cross-sectional view taken on line A-A of FIG. 20 in thegas releasing cap and an illustration view at the time of general use.

FIG. 22 is a cross-sectional view of the gas releasing cap whenreleasing gas.

DESCRIPTIONS OF THE SYMBOLS

-   -   750, 770, 775, 776, 780, 850, 860, 900: Gas releasing cap    -   501: Cap body    -   511, 711, 751, 761, 811, 851, 861, 960: Top plate part    -   512, 812, 970: Side wall    -   712, 752, 762, 852, 862: First side wall    -   714, 754, 764, 854, 864: Second side wall    -   513: Opening    -   517, 713, 715, 753, 755, 763, 765, 853, 855, 863, 865,    -   971: Engaging projection    -   502: Pushing r    -   521: Pushing projection    -   950: Push button part    -   952: Spray nozzle    -   3: Aerosol container    -   33: Winding up part    -   35: Stem    -   36: Winding up part    -   37: Push button

1. A gas releasing cap for attaching to an aerosol container forspraying the content through a stem by pushing the stem, comprising: acap body composed of a top plate part and a side wall installeddownwardly at the rim of the top plate part, in which an opening isformed in the top plate part; and a pushing member having a pushingprojection swingably connected to the top plate part of the cap body,wherein the cap is capable of releasing gas by swinging the pushingmember within the cap so as to lock the pushing member into the topplate part and attaching the cap body to the aerosol container so as topush the stem with the pushing projection.
 2. A gas releasing cap forattaching to an aerosol container for spraying the content through astem by pushing the stem, comprising: a top plate part; a first sidewall installed downwardly at the rim of the top plate part having anengaging projection engageable with a winding up part of the aerosolcontainer at a lower end; and a second side wall installed upwardly atthe rim of the top plate part having an engaging projection engageablewith the winding up part at an upper end, wherein the distance from thetop plate part to the upper end of the second side wall is set to besmaller than the distance from the top plate part to the lower end ofthe first side wall and the stem is pushed with the top plate part so asto release gas by engaging the second side wall with the winding up partof the aerosol container.
 3. A gas releasing cap for attaching to anaerosol container for spraying the content through a stem by pushing thestem, comprising: a top plate part; and a side wall installed downwardlyat the rim of the top plate part, wherein the stem is pushed with thetop plate part by forcibly inserting the side wall into the aerosolcontainer.
 4. A gas releasing cap for attaching to an aerosol containerfor spraying the content through a stem by pushing the stem, comprising:a top plate part; a first side wall installed downwardly at the rim ofthe top plate part having an engaging projection engageable with onewinding up part of the aerosol container at a lower end; and a secondside wall installed upwardly at the rim of the top plate part having anengaging projection engageable with another winding up part at an upperend, wherein the distance from the top plate part to the upper end ofthe second side wall is set to be smaller than the distance from the topplate part to the lower end of the first side wall and the stem ispushed with the top plate part so as to release gas by engaging thesecond side wall with the winding up part of the aerosol container.
 5. Agas releasing cap for attaching to an aerosol container for spraying thecontent through a stem by pushing the stem, comprising: a push buttonattachably/detachably attached to the stem having a spray nozzle; a topplate part provided above the push button; and a side wall providedabove the top plate part having an engaging projection engageable with awinding up part of the aerosol container at an upper end, wherein thestem is pushed with the top plate part so as to release gas by removingthe push button from the stem and engaging the side wall with thewinding up part of the aerosol container.